**›57 seconds:** Check for understanding and discuss the equation for the coefficient of thermal expansion.

**› 3 minutes, 2 seconds:** Have students brainstorm and share ways to calculate the change in volume before the video explains the method.

**› 3 minutes, 59 seconds:** Have students think about how they can solve for the coefficient of thermal expansion and try to calculate the answer.

**› 6 minutes, 33 seconds:** Have students think about how to determine sea level rise based on the change in volume.

**› 7 minutes, 2 seconds:** Have students solve for the sea level rise due to thermal expansion if the temperature was .3°C and .4°C.

**› 7 minutes, 41 seconds:** Have students make observations about the bar graph.

**› 9 minutes, 4 seconds:** Ask students what the graph shows; have a volunteer come to the board to draw or indicate the **trend line **of the graph.